<template>
	<div>
		<div class="search">
			<input type="text" class="search-input" placeholder="输入城市名或拼音" v-model="keyword">
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-item border-bottom"
					v-for="item of list"
					:key="item.id"
					@click="handleCityClick(item.name)"
				>
					{{item.name}}
				</li>
				<li class="search-item border-bottom"
					v-show="hasNoData">
					没有找到匹配项
				</li>
			</ul>
		</div>
	</div>
</template>
<script>
	import Bscroll from 'better-scroll'
	import { mapState,mapMutations } from 'vuex'

	export default {
		name: 'CitySearch',
		props: {
			cities:Object
		},
		data () {
			return {
				keyword: '',
				list: [],
				timer: null,
				scroll
			}
		},
		methods: {
			handleCityClick (city) {
				// this.$store.commit('changeCity',city)
				// console.log(city)
				this.changeCity(city)
				this.$router.push('/')
			},
			...mapMutations(['changeCity'])
		},
		computed: {
			hasNoData () {
				return this.list.length
			}
		},
		watch: {
			keyword () {
				if(this.timer){
					clearTimeout(this.timer)
				}
				if(!this.keyword){
					this.list = []
					return
				}
				this.timer = setTimeout(() => {
					const result = []
					for(let i in this.cities){
						this.cities[i].forEach((value) => {
							if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1){
								result.push(value)
							}
						})
					}
					this.list = result
				},100)
			}
		},
		mounted () {
			this.scroll = new Bscroll(this.$refs.search)
		}
	}
</script>
<style lang='stylus' scoped>
	@import '~styles/varibles.styl'
	.search
		height: .72rem
		padding: 0 .1rem
		background: $bgColor
		.search-input
			box-sizing: border-box
			width:100%
			padding: 0 .1rem
			text-align: center
			border-radius: .06rem
			height: .62rem
			line-height: .62rem
			color:#666
	.search-content
		overflow:hidden
		position:absolute
		z-index:1
		top:1.58rem
		left:0
		right:0
		bottom:0
		background:#eee
		.search-item
			line-height:.62rem
			padding-left:.2rem
			color:#666
	
</style>